Go https://docs.gomplate.ca/installing/ goのテンプレートエンジン 使い方 $ echo 'My voice is my {{.Env.THING}}. {{(datasource "vault").value}}' \ | docker run -i -e THING=passport -v /home/me/.vault-token:/root/.vault-token hairyhenderson/gomplate -d vault=vault:///secret/sneakers -f - My voice is my passport. Verify me.